CPC H02M 3/33592 (2013.01) [H02M 1/0058 (2021.05); H02M 1/08 (2013.01)] | 11 Claims |
1. A converter comprising:
a switching stage including first and second primary transistors;
a resonant stage connected to the switching stage;
a transformer including a primary winding connected to the resonant stage and a secondary winding;
a rectifying stage connected to the secondary winding of the transformer and including first and second synchronous rectifiers; and
a controller configured and/or programmed to operate in:
a steady-state mode in which an output voltage of the converter is regulated by varying a switching frequency of the first and second primary transistors and of the first and second synchronous rectifiers; and
a synchronous-rectification control mode in which the output voltage of the converter is regulated when an output-voltage overshoot is detected by switching the first and second primary transistors and the first and second synchronous rectifiers at a fixed switching frequency and by varying a duty cycle of the first and second synchronous rectifiers.
|